From 87503099d88ef592f331ea020cf5d5869b1cc6bd Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Sun, 29 Nov 2020 02:45:12 +0500
Subject: [PATCH] Print Multiboot 2 VBE info & framebuffer tag

---
 src/multiboot2/print.c        | 16 ++++++++++++++++
 tests/test_multiboot2_print.c |  6 ++++++
 2 files changed, 22 insertions(+)

diff --git a/src/multiboot2/print.c b/src/multiboot2/print.c
index f5cfe04..d3cf307 100644
--- a/src/multiboot2/print.c
+++ b/src/multiboot2/print.c
@@ -153,10 +153,26 @@ void KernAux_Multiboot2_TagBase_print(
         break;
     case KERNAUX_MULTIBOOT2_TAGTYPE_VBE_INFO:
         {
+            const struct KernAux_Multiboot2_Tag_VBEInfo *const tag_vbe =
+                (struct KernAux_Multiboot2_Tag_VBEInfo*)tag_base;
+
+            print("  VBE mode: %hu\n",          tag_vbe->vbe_mode);
+            print("  VBE interface seg: %hu\n", tag_vbe->vbe_interface_seg);
+            print("  VBE interface off: %hu\n", tag_vbe->vbe_interface_off);
+            print("  VBE interface len: %hu\n", tag_vbe->vbe_interface_len);
         }
         break;
     case KERNAUX_MULTIBOOT2_TAGTYPE_FRAMEBUFFER_INFO:
         {
+            const struct KernAux_Multiboot2_Tag_FramebufferInfo *const tag_fb =
+                (struct KernAux_Multiboot2_Tag_FramebufferInfo*)tag_base;
+
+            print("  framebuffer addr: %llu\n", tag_fb->framebuffer_addr);
+            print("  framebuffer pitch: %u\n",  tag_fb->framebuffer_pitch);
+            print("  framebuffer width: %u\n",  tag_fb->framebuffer_width);
+            print("  framebuffer height: %u\n", tag_fb->framebuffer_height);
+            print("  framebuffer bpp: %u\n",    tag_fb->framebuffer_bpp);
+            print("  framebuffer type: %u\n",   tag_fb->framebuffer_type);
         }
         break;
     case KERNAUX_MULTIBOOT2_TAGTYPE_ELF_SYMBOLS:
diff --git a/tests/test_multiboot2_print.c b/tests/test_multiboot2_print.c
index 91a00c7..591baa2 100644
--- a/tests/test_multiboot2_print.c
+++ b/tests/test_multiboot2_print.c
@@ -54,6 +54,12 @@ static const char output[] =
     "Multiboot 2 tag\n"
     "  type: 8 (framebuffer info)\n"
     "  size: 32\n"
+    "  framebuffer addr: 753664\n"
+    "  framebuffer pitch: 160\n"
+    "  framebuffer width: 80\n"
+    "  framebuffer height: 25\n"
+    "  framebuffer bpp: 16\n"
+    "  framebuffer type: 2\n"
     "Multiboot 2 tag\n"
     "  type: 14 (ACPI old RSDP)\n"
     "  size: 28\n"